National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

55°F

13°C

Humidity 100%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 01 Jan 08:10 PM PST
Extended Forecast for

2 Miles SSW Cupertino CA

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 48. South southeast wind 7 to 10 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday

    Friday: A chance of rain before 2pm, then rain after 4pm. High near 58. South southeast wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Slight Chance
    Rain then
    Rain

  • Friday Night

    Friday Night: Rain. Low around 52. South wind around 16 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain

  • Saturday

    Saturday: Rain, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 59. South southwest wind 17 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then rain after 7pm. Low around 50. South wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Rain. High near 56. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 48. South southeast wind 7 to 10 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of rain before 2pm, then rain after 4pm. High near 58. South southeast wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 52. South wind around 16 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Rain, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 59. South southwest wind 17 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm, then rain after 7pm. Low around 50. South wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 56. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain. Low around 46. Chance of precipitation is 80%.
Monday
Rain likely. Mostly cloudy, with a high near 55.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of rain before 10am. Mostly sunny, with a high near 56.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Partly sunny, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
Last Update:
12:32 pm PST Jan 1, 2026
Forecast Valid:
8pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation